<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <goods-item :goods="goods"></goods-item>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
          // 查询关键词
          query: '',
          // 商品分类Id
          cid: '',
          // 页码值
          pagenum: 1,
          // 每页显示多少条数据
          pagesize: 10
        },
        isRequest: false,
        // 商品列表的数据
        goodsList: [],
        // 总数量，用来实现分页
        total: 0,
        // defaultPic: 'https://i0.hdslb.com/bfs/article/f9bfd61fc8c6bfbfe0a89edf3efa2d778e84b459.jpg@942w_942h_progressive.webp',
        defaultPic: 'https://i0.hdslb.com/bfs/article/9cda18d2825299bd760f2575bfb7b398e45b3b92.png@942w_890h_progressive.webp'
      };
    },
    onLoad(options) {
      // 将页面参数转存到 this.queryObj 对象中
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      console.log(options);
      this.getGoodsList()
    },
    methods: {
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/good_detail/good_detail?goods_id=' + item.goods_id
        })
      },
      // 获取商品列表数据的方法
      async getGoodsList(cb) {
        this.isRequest = true
        // 发起请求
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        if (res.meta.status !== 200) return uni.$showMsg()
        console.log(res);
        // 为数据赋值
        this.goodsList = [
          ...this.goodsList,
          ...res.message.goods
        ]
        this.total = res.message.total
        cb && cb()
        this.isRequest = false
      }
    },
    onReachBottom() {
      if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('没有更多数据了~~')
      if (this.isRequest) return
      this.queryObj.pagenum++
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []

      // 2. 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>